{"id":"6b4aa716-12fe-418d-abe1-1c85dcc947cb","shortId":"h6R5wg","kind":"x402","title":"Get the current stock price for Costco (COST) via a pay-per-call x402 endpoint on Base.","tagline":"Get the current stock price for Costco (COST) via a pay-per-call x402 endpoint on Base.","description":"This endpoint returns the current stock price for Costco Wholesale Corporation (ticker: COST) as a JSON response. It is part of the lowpaymentfee.com platform, which offers a variety of pay-per-request APIs spanning finance, AI/ML, data analytics, and utility services — all gated via the x402 payment protocol on the Base network.\n\nThe endpoint costs $0.02 per request, paid in USDC on Base (contract 0x8335…2913). There are no API keys, no rate limits, and no subscription commitments — each call is individually settled via an x402 payment header. The x402 challenge confirms the endpoint is live, accepting POST requests, and returning application/json.\n\nThe provider's landing page lists many other endpoints at similar pricing, but documentation is extremely thin. The /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema for this stock-price endpoint. As a result, the exact fields returned (e.g., whether it includes bid/ask, volume, timestamp, etc.) are unknown and must be discovered by making a paid call.","tags":[],"capabilities":["stock-price","real-time-data","x402-payment","usdc-base","pay-per-request","no-api-key","finance-data"],"categories":["finance","data"],"synonyms":["stock price API","COST stock price","Costco stock quote","equity price lookup","x402 stock data","pay-per-call stock API","Base USDC API"],"warnings":["No OpenAPI spec or schema documentation available","All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no technical content","Response schema for the stock price endpoint is completely undocumented — field names, data types, and coverage are unknown","The specific endpoint path /api/v1/stocks/COST/price is not listed on the provider's landing page; only /api/v1/finance/prices is shown, so this may be an undocumented or experimental route"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stocks/COST/price","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/stocks/COST/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and confirms pricing and payment details, but there is zero documentation on request/response schemas, no OpenAPI spec, and all doc pages render only a wallet-connect prompt. The actual data returned is unknown without making a paid 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'/docs':158 '/pricing':159 '/readme':162 '0.02':93 '0x8335':102 '2913':103 'Base USDC API' 'COST stock price' 'Costco stock quote' 'accept':134 'ai/ml':73 'analyt':75 'api':70,107 'application/json':139 'base':18,36,88,100 'bid/ask':209 'call':14,32,117,223 'challeng':128 'commit':115 'confirm':129 'connect':168 'contract':101 'corpor':47 'cost':8,26,49,92 'costco':7,25,45 'current':3,21,41 'data':74 'descript':187 'detail':175 'discov':218 'document':153 'e.g':205 'endpoint':16,34,38,91,131,148,197 'equity price lookup' 'etc':212 'exact':202 'exampl':182 'extrem':155 'field':203 'financ':72 'finance-data' 'gate':80 'get':1,19 'header':125 'includ':208 'individu':119 'json':52 'key':108 'land':143 'limit':111 'list':145 'live':133 'lowpaymentfee.com':59 'make':220 'mani':146 'must':216 'network':89 'no-api-key' 'offer':62 'openapi':179 'page':144,163 'paid':96,222 'part':56 'pay':12,30,67 'pay-per-cal':11,29 'pay-per-call stock API' 'pay-per-request':66 'payload':184 'payment':84,124 'per':13,31,68,94 'platform':60 'post':135 'price':5,23,43,151,196 'prompt':170 'protocol':85 'provid':141 'rate':110 'real-time-data' 'render':165 'request':69,95,136 'request/response':183 'respons':53,190 'result':200 'return':39,138,204 'schema':191 'servic':78 'settl':120 'similar':150 'span':71 'spec':180 'stock':4,22,42,195 'stock price API' 'stock-pric':194 'stock-price' 'subscript':114 'technic':174 'thin':156 'ticker':48 'timestamp':211 'unknown':214 'usdc':98 'usdc-base' 'util':77 'varieti':64 'via':9,27,81,121 'volum':210 'wallet':169 'whether':206 'wholesal':46 'x402':15,33,83,123,127 'x402 stock data' 'x402-payment'","prices":[{"id":"94553b24-ccf2-4e9c-a1cb-32dcc8ab5775","listingId":"6b4aa716-12fe-418d-abe1-1c85dcc947cb","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/stocks/COST/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:52.628Z"}],"sources":[{"listingId":"6b4aa716-12fe-418d-abe1-1c85dcc947cb","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stocks/COST/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:52.628Z","lastSeenAt":"2026-04-23T20:01:28.597Z"}],"details":{"listingId":"6b4aa716-12fe-418d-abe1-1c85dcc947cb","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stocks/COST/price \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns HTTP 402 with an x402 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/stocks/COST/price"},{"claim":"The platform charges $0.02 per request with no API keys, no rate limits, and no commitments","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stocks/COST/price"},{"claim":"The maxAmountRequired is 20000 base units, which equals $0.02 for a 6-decimal USDC token","source_url":"https://lowpaymentfee.com/api/v1/stocks/COST/price"}],"useCases":["Retrieve the current stock price for Costco (COST) in an automated trading or monitoring pipeline","Integrate real-time equity pricing into an AI agent's decision-making workflow without managing API keys","Pay-per-call stock data access for low-volume or sporadic usage patterns"],"bestFor":["Agents or bots that need on-demand stock prices without subscription overhead","Developers experimenting with x402 payment-gated APIs on Base","Low-volume consumers who want simple, keyless access to equity data"],"notFor":["High-frequency trading requiring sub-millisecond latency and bulk data","Users who need historical OHLCV or detailed market depth data (not documented)","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:03:14.361Z"},"updatedAt":"2026-04-23T20:01:28.597Z"}}